Nail or spike.



Paten ted Apr. 23, IBM.

G. T. WALKER,

NAIL '08 SFlKE. (Application filed Jgly 3, 1900.)

(No Model.)

Wain eases:

In v nZ 0fo a i M52 02); qy

THE mums miss c0. FHOIG-UTHO" vmsnmomn. o. c.

v in accordance with my invention.

UNITED STATES PATENT Fr -on.

GEORGE T. \VALKEE, OF GRAFTON, TERRITORY OF NEW MEXICO.

NAiLOh SPIKE.

SPECIFICATION forming part of Letters Patent No. 672,465, dated. April 23, 1961.

Application filed July 3, 1900.

To all whom a; wrong concern:

Be it known that I, GEORGE T. WALKER, a. citizen of the United States, residing at Grafton, in the county of Sierra and Territory of New Mexico, have invented certain new and useful Improvements in Nails or Spikes; and I do hereby declare the following to be a full,

clear, and exact description of the invention, such will enable others skilled in the art to whichit appe'rtains to make and use the same. My invention relates to nails and spikes, and has for its object to provide a nail whose holding power greater in proportion to its length and cross-section than the ordinary nail or spike. \Vith this object in view I have provided a nail or spike'which is simple in its construction, cheap to manufacture, and above all practical and efiicient.

Referring to the accompanying drawings, Fig'u re 1 is an elevation of a nail constructed Fig. 2 is a cross-section through the same along the line X X of Fig. 1. Fig. 3 is' a modification showing the nail without the serrations near the head and with sharp corners. Fig. i is an end View of the nail, snowing the point having three or'four faces.

The same letters of reference indicate like parts throughout the several figures, in which A is the nail, provided with the ordinar head B, the sides C being preferably square, although said sides may be fluted, concave, hexagonal, or of any desired form. D represents the rounded corners formed by said. sides, each corner being an arc of a circle whose diameter is equal to the cross-section of the nail, as shown in Fig, 2, v

E represents the serrations on the rounded corners 1), directly under the head B and extending a short distance down the shank.

Between the central portion of the nail and the point the shank is given one or more halfturns, as shown in Fig. l. The point of said nailis provided with three or, preferably, four faces 'F, which meet to form the point 8-, the rounded corners 1) running into B faces for a purpose which will be hereinziiwi fully described.

Having thus specifically set forth the sev- Serial No- 22,405. filo model.)

eral parts of my invention, the method of man nfactn re and the operation are follows: The wire is drawn preferably square, but, as aforesaid, may be fluted, here; nal, or concave, the corners being left rounded, as-described; It is then passed when cold through the cutting", heading, and t 'isting machine. Cut nails may be treated in like manner, except that the twisting, may be done when the plate has been heated for the purpose of billing the nail or when the plate is cold and the bluing given at the last operation, as is the common practice.

I will now describe the purpose of the rounded corners.

In those tivisted nails or spikes wherein the greatly increase its holding" power.

At the point of the nail the corners are formed into flat faces, so that as the nail enters the wood the fiber engaged by the corners will not be broken, and thus insure a snug contact, and thereby increase the holding power of the nail.

Having thus fufy set forth my'invention, I do not wish to be understood limiting myself to the exact construction herein set forth, various slight changes might be made therein by those'slzilleal in the art which would fall within the limit and scope of my invention.

W hat I claim as new, and desire to secure by Letters Patent of the United States, is-

l. A nail or spike having a series of flat sides its entire length,.rounded corners, the upper portion of the shank being straight, the lower portion having one or more halfturns, the rounded corners of said shank forming faces at they end thereof in such a inennerthet the nail will enter without breakin; the fioerof the wood, substantially as described. r

A nail or spike having a series of flat its entire length, rounded corners, serrations on said corners the upper portion of the shank being straight, the lower portion having one or more half-turns, the rounded In testimony whereof I afiix my signature corners of said shank forming faces at the in presence of two witnesses.

end thereof, the whole combined in such a l manner that the nail will enterwithout break- GEORGE WALKER ing the fiber of the wood, and capable of be- Witnesses ing drawn in the same manner as'a straigh t FRANK H. WINSTON,

nail, substantially as described. 1 TACOB M. BLfTN. 

